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:- object(steadfastness).

	% incorrect max/3 definition (e.g., max(5,3,3) is true!)
	max(X, Y, X) :- X >= Y, !.
	max(_, Y, Y).

	% incorrect nt//2 definition (e.g., phrase(nt(75,0), _) is true!)
	nt(A, A) --> [A], {A >= 65}, !.
	nt(_, 0) --> [_].

:- end_object.
